A 5-year randomized trial to compare 1 or 2 implants for implant overdentures.
Identifieur interne : 000587 ( PubMed/Corpus ); précédent : 000586; suivant : 000588A 5-year randomized trial to compare 1 or 2 implants for implant overdentures.
Auteurs : S R Bryant ; J N Walton ; M I MacenteeSource :
- Journal of dental research [ 1544-0591 ] ; 2015.
English descriptors
- KwdEn :
- Aged, Dental Arch (surgery), Dental Implants, Dental Implants, Single-Tooth, Dental Prosthesis, Implant-Supported, Dental Restoration Failure, Denture Rebasing, Denture Repair, Denture Retention, Denture, Complete, Lower, Denture, Overlay, Female, Follow-Up Studies, Humans, Jaw, Edentulous (rehabilitation), Jaw, Edentulous (surgery), Male, Mandible (surgery), Patient Satisfaction, Self-Assessment, Survival Analysis, Treatment Outcome, Visual Analog Scale.
- MESH :
- chemical : Dental Implants.
- rehabilitation : Jaw, Edentulous.
- surgery : Dental Arch, Jaw, Edentulous, Mandible.
- Aged, Dental Implants, Single-Tooth, Dental Prosthesis, Implant-Supported, Dental Restoration Failure, Denture Rebasing, Denture Repair, Denture Retention, Denture, Complete, Lower, Denture, Overlay, Female, Follow-Up Studies, Humans, Male, Patient Satisfaction, Self-Assessment, Survival Analysis, Treatment Outcome, Visual Analog Scale.
Abstract
The hypothesis of this 5-y randomized clinical trial was that there would be no significant difference in the satisfaction of edentulous participants with removable complete overdentures attached to 1 or 2 mandibular implants. Secondary aims were to test changes in satisfaction between and within the groups from baseline to 5 y and differences between the groups in implant survival and prosthodontic maintenance over 5 y. Each of the 86 participants (mean age, 67 y) was randomly allocated to receive either 1 implant in the midline (group 1) or 2 implants in the canine areas (group 2) attached to a mandibular overdenture opposing a maxillary complete denture. Satisfaction was self-assessed by participants on a visual analog scale at baseline prior to implants, as well as at 2 mo and 1, 3, and 5 y with implant overdentures, whereas implant survival and prosthodontic maintenance were assessed by clinical examination. After 5 y, 29 participants in group 1 and 33 in group 2 were available, with most dropouts due to death. Satisfaction with the implant denture after 5 y was significantly (P < 0.001) higher than at baseline in both groups and remained with no significant difference (P = 0.32) between the groups. No implants failed in group 1 but 5 failed before loading in 4 participants in group 2. Most participants required maintenance or occasionally denture replacement, and although differences between the groups were not statistically significant, group 1 experienced almost twice as many fractured dentures usually adjacent to the implant attachment. We conclude that there were no significant differences after 5 y in satisfaction or survival of implants with mandibular overdentures retained by 1 implant or 2 implants. Additional research is required to confirm long-term treatment effectiveness of single-implant dentures and the implications of prosthetic maintenance with implant overdentures (ClinicalTrials.gov: NCT02117856).
DOI: 10.1177/0022034514554224
PubMed: 25348544
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pubmed:25348544Le document en format XML
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<affiliation><nlm:affiliation>Division of Prosthodontics and Dental Geriatrics, Department of Oral Health Sciences, University of British Columbia, Canada r.bryant@ubc.ca.</nlm:affiliation>
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<author><name sortKey="Walton, J N" sort="Walton, J N" uniqKey="Walton J" first="J N" last="Walton">J N Walton</name>
<affiliation><nlm:affiliation>Division of Prosthodontics and Dental Geriatrics, Department of Oral Health Sciences, University of British Columbia, Canada.</nlm:affiliation>
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<author><name sortKey="Macentee, M I" sort="Macentee, M I" uniqKey="Macentee M" first="M I" last="Macentee">M I Macentee</name>
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<author><name sortKey="Bryant, S R" sort="Bryant, S R" uniqKey="Bryant S" first="S R" last="Bryant">S R Bryant</name>
<affiliation><nlm:affiliation>Division of Prosthodontics and Dental Geriatrics, Department of Oral Health Sciences, University of British Columbia, Canada r.bryant@ubc.ca.</nlm:affiliation>
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<author><name sortKey="Walton, J N" sort="Walton, J N" uniqKey="Walton J" first="J N" last="Walton">J N Walton</name>
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<term>Dental Arch (surgery)</term>
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<term>Dental Implants, Single-Tooth</term>
<term>Dental Prosthesis, Implant-Supported</term>
<term>Dental Restoration Failure</term>
<term>Denture Rebasing</term>
<term>Denture Repair</term>
<term>Denture Retention</term>
<term>Denture, Complete, Lower</term>
<term>Denture, Overlay</term>
<term>Female</term>
<term>Follow-Up Studies</term>
<term>Humans</term>
<term>Jaw, Edentulous (rehabilitation)</term>
<term>Jaw, Edentulous (surgery)</term>
<term>Male</term>
<term>Mandible (surgery)</term>
<term>Patient Satisfaction</term>
<term>Self-Assessment</term>
<term>Survival Analysis</term>
<term>Treatment Outcome</term>
<term>Visual Analog Scale</term>
</keywords>
<keywords scheme="MESH" type="chemical" xml:lang="en"><term>Dental Implants</term>
</keywords>
<keywords scheme="MESH" qualifier="rehabilitation" xml:lang="en"><term>Jaw, Edentulous</term>
</keywords>
<keywords scheme="MESH" qualifier="surgery" xml:lang="en"><term>Dental Arch</term>
<term>Jaw, Edentulous</term>
<term>Mandible</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Aged</term>
<term>Dental Implants, Single-Tooth</term>
<term>Dental Prosthesis, Implant-Supported</term>
<term>Dental Restoration Failure</term>
<term>Denture Rebasing</term>
<term>Denture Repair</term>
<term>Denture Retention</term>
<term>Denture, Complete, Lower</term>
<term>Denture, Overlay</term>
<term>Female</term>
<term>Follow-Up Studies</term>
<term>Humans</term>
<term>Male</term>
<term>Patient Satisfaction</term>
<term>Self-Assessment</term>
<term>Survival Analysis</term>
<term>Treatment Outcome</term>
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<front><div type="abstract" xml:lang="en">The hypothesis of this 5-y randomized clinical trial was that there would be no significant difference in the satisfaction of edentulous participants with removable complete overdentures attached to 1 or 2 mandibular implants. Secondary aims were to test changes in satisfaction between and within the groups from baseline to 5 y and differences between the groups in implant survival and prosthodontic maintenance over 5 y. Each of the 86 participants (mean age, 67 y) was randomly allocated to receive either 1 implant in the midline (group 1) or 2 implants in the canine areas (group 2) attached to a mandibular overdenture opposing a maxillary complete denture. Satisfaction was self-assessed by participants on a visual analog scale at baseline prior to implants, as well as at 2 mo and 1, 3, and 5 y with implant overdentures, whereas implant survival and prosthodontic maintenance were assessed by clinical examination. After 5 y, 29 participants in group 1 and 33 in group 2 were available, with most dropouts due to death. Satisfaction with the implant denture after 5 y was significantly (P < 0.001) higher than at baseline in both groups and remained with no significant difference (P = 0.32) between the groups. No implants failed in group 1 but 5 failed before loading in 4 participants in group 2. Most participants required maintenance or occasionally denture replacement, and although differences between the groups were not statistically significant, group 1 experienced almost twice as many fractured dentures usually adjacent to the implant attachment. We conclude that there were no significant differences after 5 y in satisfaction or survival of implants with mandibular overdentures retained by 1 implant or 2 implants. Additional research is required to confirm long-term treatment effectiveness of single-implant dentures and the implications of prosthetic maintenance with implant overdentures (ClinicalTrials.gov: NCT02117856).</div>
</front>
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<Title>Journal of dental research</Title>
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<ArticleTitle>A 5-year randomized trial to compare 1 or 2 implants for implant overdentures.</ArticleTitle>
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<Abstract><AbstractText>The hypothesis of this 5-y randomized clinical trial was that there would be no significant difference in the satisfaction of edentulous participants with removable complete overdentures attached to 1 or 2 mandibular implants. Secondary aims were to test changes in satisfaction between and within the groups from baseline to 5 y and differences between the groups in implant survival and prosthodontic maintenance over 5 y. Each of the 86 participants (mean age, 67 y) was randomly allocated to receive either 1 implant in the midline (group 1) or 2 implants in the canine areas (group 2) attached to a mandibular overdenture opposing a maxillary complete denture. Satisfaction was self-assessed by participants on a visual analog scale at baseline prior to implants, as well as at 2 mo and 1, 3, and 5 y with implant overdentures, whereas implant survival and prosthodontic maintenance were assessed by clinical examination. After 5 y, 29 participants in group 1 and 33 in group 2 were available, with most dropouts due to death. Satisfaction with the implant denture after 5 y was significantly (P < 0.001) higher than at baseline in both groups and remained with no significant difference (P = 0.32) between the groups. No implants failed in group 1 but 5 failed before loading in 4 participants in group 2. Most participants required maintenance or occasionally denture replacement, and although differences between the groups were not statistically significant, group 1 experienced almost twice as many fractured dentures usually adjacent to the implant attachment. We conclude that there were no significant differences after 5 y in satisfaction or survival of implants with mandibular overdentures retained by 1 implant or 2 implants. Additional research is required to confirm long-term treatment effectiveness of single-implant dentures and the implications of prosthetic maintenance with implant overdentures (ClinicalTrials.gov: NCT02117856).</AbstractText>
<CopyrightInformation>© International & American Associations for Dental Research 2014.</CopyrightInformation>
</Abstract>
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<ForeName>S R</ForeName>
<Initials>SR</Initials>
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<AffiliationInfo><Affiliation>Division of Prosthodontics and Dental Geriatrics, Department of Oral Health Sciences, University of British Columbia, Canada.</Affiliation>
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